// ==UserScript==
// @name picViewer
// @author NLF
// @description 围观图(Support Opera 10.1+ ,Fx3.6+(need GreaseMonkey or scriptish) , Chrome5.0+)
// @create 2011-6-15
// @lastmodified 2011-7-2
// @version 3.0.2.0
// @namespace  http://userscripts.org/users/NLF
// @download http://userscripts.org/scripts/show/105741
// @updateURL https://userscripts.org/scripts/source/105741.meta.js
// @include http*
// ==/UserScript==


//opera执行会真实环境,包在匿名函数里面.
(function(topObject,window,document){

	//判断执行环境,opera,firefox(GM),firefox(scriptish),chrome;
	var envir=(function(){
		var envir={
			fxgm:false,
			fxstish:false,
			opera:false,
			chrome:false,
			unknown:false,
		};
		var toString=Object.prototype.toString;
		if(window.opera && toString.call(window.opera)=='[object Opera]'){
			envir.opera=true;
		}else if(typeof XPCNativeWrapper=='function'){
			if(topObject.GM_notification){//scriptish的新api
				envir.fxstish=true;
			}else{
				envir.fxgm=true;
			};
		}else if(typeof window.chrome=='object'){
			envir.chrome=true;
		}else{
			envir.unknown=true;
		};
		return envir;
	})();

	//未知环境,跳出.
	if(envir.unknown)return;

	function init(){
		if(document.body.tagName=='FRAMESET')return;

		//一些开关.
		var prefs={
			floatBar:{//浮动工具栏相关设置.
				showDelay:366,//浮动工具栏显示延时.单位(毫秒)
				hideDelay:333,//浮动工具栏隐藏延时.单位(毫秒)
				position:'top left',// 取值为: 'top left'(图片左上角) 或者 'top right'(图片右上角) 'bottom right'(图片右下角) 'bottom left'(图片左下角);
				offset:{//浮动工具栏偏移.单位(像素)
					x:0,//x轴偏移(正值,向右偏移,负值向左)
					y:-11,//y轴偏移(正值,向下,负值向上)
				},
			},
			overlayer:{//覆盖层.
				show:false,//显示
				color:'rgba(0,0,0,0.73)',//颜色和不透明度设置.
				dbcCloseAll:true,//双击覆盖层,关闭所有打开的窗口.
			},
			zoomShowMinSizeLimit:{//就算是图片被缩放了(看到的图片被设定了width或者height限定了大小,这种情况下),如果没有被缩放的原图片小于设定值,那么也不显示浮动工具栏.
				w:60,
				h:60,
			},
			floatBarForceShow:{//在没有被缩放的图片上,但是大小超过下面设定的尺寸时,强制显示浮动框.(以便进行旋转,放大,翻转等等操作)..
				enabled:true,//启用强制显示.
				size:{//图片尺寸.单位(像素);
					w:166,
					h:166,
				},
			},
			wheelZoom:{//滚轮缩放
				zoomRange:[0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1,1.2,1.3,1.5,1.7,1.9,2,2.5,3.0,4.0,6.0],//缩放比例.(不要出现负数,谢谢-_-!~)
				minZoomSizeLimit:{//最小的允许缩放尺寸,当原图大于设定值的时候,缩放到设定值,如果原图没有设定值大,那么最小的缩放极限为原图大小(为了能 100% 显示)
					h:155,
					w:155,
				},
			},
			firstOpenFTS:true,//当图片大于屏幕的时候,第一次打开,是否适应屏幕.
			magnifier:{//放大镜的设置.
				radius:77,//默认半径.单位(像素).
				autoRadius:true,//当满足某种特殊条件时为会自动缩放半径,比如:原图太小,为了看到局部-_-!!~...都说是放大镜,就是为了看局部的,我才不要一下全部看到呢..
				//双层边框设置.
				borderWidth:[2,6],//[第一边框宽度,第二边框宽度]边框的宽度.
				borderColor:['rgba(255,255,255,0.9)','rgba(0,0,0,0.6)'],//[第一边框颜色,第二边框颜色]边框的颜色.
				shape:'circle',// 'square'(正方形) 'circle'(圆形)
				minSizeLimit:{//限制当看到的图片大小,大于设定值的时候,才显示放大镜,实际上有被缩放的图片上,都可以显示放大镜,但是如果当前的图片太小,不够足够的距离移动,体验不好.
					width:60,
					height:60,
				},
			},
			multipleInstance:{
				oneSrcOneInstance:true,//每个SRC只打开一个实例.
			},
			mode:'auto',//取值:'css3' 或者 'canvas' 或者 'auto'(优先使用css3) ,,,表示渲染旋转,翻转,缩放的使用方式..如果你选择的方式不支持,那么会强制使用另外一种.
			shiftRotateStep:15,//按住shift键时,旋转的步进.单位:度.
			waitImgLoad:true,//等图片完全载入后,才开始执行弹出,放大等等操作.
			iframePicOpenInTopWindow:true,//iframe里面的图片在顶层窗口弹出(顶层窗口是frameset除外.)(chrome此功能无效).
//////////////////////////
			debug:false,//输出debug信息(影响速度,并且可能对你完全没有作用,你最好关闭它..-_-!~)
		};

		//图标.
		prefs.icons={
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		};

			//各网站规则;
		var siteInfo=[
			{siteName:"google图片搜索",
				siteExample:"http://www.google.com.hk/search?q=opera&tbm=isch",					//网址例子..(方便测试.查看.之类的)
				enabled:true,		//是否启用..(是否启用这条规则)
				clickToOpen:{		//(功能未完成)接管鼠标左键点击..(是否点击 鼠标 左键直接用本JS打开图片)
					enabled:true,//启用
					type:'original',//默认的打开方式: 'original'(弹出,原始图片) 'magnifier'(放大镜) 'current'(弹出,当前图片)
				},
				url:/https?:\/\/www.google(\.\w{1,3}){1,3}\/search\?.*&tbm=isch/,				//站点正则..
				getImage:function(img,a){																								//获取图片实际地址的处理函数,this 为当前鼠标悬浮图片的引用..另外传入的第一个参数为当前图片的引用,第二个参数为包裹当前图片的第一个a元素.
					return a.href.match(/imgurl=(.*?\.\w{1,5})&/i)[1];
				},
			},
			{sitename:"豆瓣",
				siteExample:"http://movie.douban.com/photos/photo/1000656155/",
				enabled:true,
				url:/^https?:\/\/[^.]*\.douban\.com/i,
				getImage:function(){
					var oldsrc=this.src;
					var newsrc=oldsrc.replace(/\/view\/photo\/photo\/public\//i,'/view/photo/raw/public/');
					if(newsrc!=oldsrc)return newsrc;
				}
			},
			{sitename:"deviantart",
				enabled:true,
				url:/^http:\/\/www\.deviantart\.com/i,
				siteExample:"http://www.deviantart.com",
				getImage:function(){
					var oldsrc=this.src;
					var newsrc=oldsrc.replace(/(http:\/\/[^\/]*\/fs\d*\/)150\/(.*)/i,'$1$2');
					return newsrc==oldsrc? '' : newsrc;
				},
			},
			{sitename:"opera官方论坛",
				enabled:true,
				url:/^http:\/\/bbs\.operachina\.com/i,
				siteExample:"http://bbs.operachina.com",
				getImage:function(){
					return this.src.match(/(.*)&t=1$/i)[1]+'&mode=view';
				},
			},
			{sitename:"QQ微博",
				enabled:true,
				url:/^http:\/\/t\.qq\.com\//i,
				siteExample:"http://t.qq.com/p/news",
				getImage:function(img,a){
						var pic=/(\.qpic\.cn\/mblogpic\/\w+)\/\d+/i;//图片
						var head=/(\.qlogo\.cn\/mbloghead\/\w+)\/\d+/i;//头像.
						var oldsrc=this.src;
						var newsrc;
						if(pic.test(oldsrc)){
							newsrc=oldsrc.replace(pic,'$1\2000');
							return newsrc==oldsrc? '' : newsrc;;
						}else if(head.test(oldsrc)){
							newsrc=oldsrc.replace(head,'$1\0');
							return newsrc==oldsrc? '' : newsrc;;
						};
				},
			},
			{sitename:"新浪微博",
				enabled:true,
				url:/^http:\/\/weibo\.com/i,
				siteExample:"http://weibo.com/pub/?source=toptray",
				getImage:function(img,a){
						var oldsrc=this.src;
						var pic=/(\.sinaimg\.cn\/)(?:bmiddle|thumbnail)/i;//图片.
						var head=/(\.sinaimg\.cn\/\d+)\/50\//i;//头像.
						if(pic.test(oldsrc)){
							var newsrc=oldsrc.replace(pic,'$1large');
							return newsrc==oldsrc? '' : newsrc;
						}else if(head.test(oldsrc)){
							var newsrc=oldsrc.replace(head,'$1/180/');
							return newsrc==oldsrc? '' : newsrc;
						};
				},
			}
		];

		//通配型规则,无视站点.
		var tprules=[
			function(img,a){//解决新的dz论坛的原图获取方式.
				var reg=/(.+\/attachments?\/.+)\.thumb\.\w{2,5}$/i;
				var oldsrc=this.src;
				var newsrc=oldsrc.replace(reg,'$1');
				if(oldsrc!=newsrc)return newsrc;
			},
		];

//=====================================
//=====================================
//=====================================

		var nullFn=function(){};
		var C={
			log:nullFn,
			error:nullFn,
		};


		if(prefs.debug){
			if(envir.opera && window.opera.version()<10.5){
				C.log=C.err=function(){
					opera.postError.apply(opera,arguments);
				};
			}else{
				var G_window=topObject.unsafeWindow || window;
				var console=G_window.console;
				if(console){
					C.log=function(){
						console.log.apply(console,arguments);
					};
					C.err=console.error? function(){
						console.error.apply(console,arguments);;
					} : C.log;
				};
			};
		};

		//事件支持检测.
		function eventSupported( eventName,el ){
			el = el || document.createElement("div");
			eventName = "on" + eventName;
			var isSupported = (eventName in el);
			if (el.setAttribute && !isSupported ) {
				el.setAttribute(eventName, "return;");
				isSupported = typeof el[eventName] === "function";
			};
			el = null;
			return isSupported;
		};

		//属性支持.
		function proSupported(proName,el){
			el = el || document.createElement("div");
			var isSupported = (proName in el);
			el=null;
			return isSupported;
		};

		//css属性支持
		function cssProSupported(proName,el){
			el = el || document.createElement("div");
			el=el.style;
			var isSupported = (proName in el);
			el=null;
			return isSupported;
		};

		//支持情况.
		var support={
			mouseenter:eventSupported('mouseenter'),
			mouseleave:eventSupported('mouseleave'),
			naturalWHS:proSupported('naturalWidth',new Image()),
			wheelEvent:eventSupported('mousewheel')? 'mousewheel' : 'DOMMouseScroll',
			transform:(function(){
				var t=['MozTransform','OTransform','WebkitTransform','transform'];
				for(var i=t.length-1,t_i;i>=0;i--){
					t_i=t[i];
					if(cssProSupported(t_i)){
						return t_i;
					};
				};
			})(),
			canvas:(function(){
				try{
					if(document.createElement("canvas").getContext("2d")){
						return true;
					};
				}catch(e){};
			})(),
		};

		C.log('浏览器的一些对象支持情况:',support);

		var addCustomEvent={
			_contains:function(parent,child){
				if(parent && child)return !!(parent.compareDocumentPosition(child) & 16);
			},
			mouseenter:function(ele,fn){
				var self=this;
				ele.addEventListener('mouseover',function(e){
					//如果来自的元素是外面的.
					var relatedTarget=e.relatedTarget;
					if(relatedTarget!=this && !self._contains(this,relatedTarget)){
						fn.call(this,e);
					};
				},false);
			},
			mouseleave:function(ele,fn){
				var self=this;
				ele.addEventListener('mouseout',function(e){
					//如果去往的元素,不是自己的子元素,或者自己本身.
					var relatedTarget=e.relatedTarget;
					if(relatedTarget!=this && !self._contains(this,relatedTarget)){
						fn.call(this,e);
					};
				},false);
			},
		};

		var classList={
			add:function(name,obj){
				if(obj.classList && obj.classList.add){
					obj.classList.add(name);
				}else{
					var cn=obj.className.split(/\s+/);
					if(cn.indexOf(name)!=-1)return;//已存在.
					cn.push(name);
					obj.className=cn.join(' ');
				};
			},
			remove:function(name,obj){
				if(obj.classList && obj.classList.remove){
					obj.classList.remove(name);
				}else{
					var cn=obj.className.split(/\s+/);
					var index=cn.indexOf(name);
					if(index==-1)return;//不存在.
					cn.splice(index,1);
					obj.className=cn.join(' ');
				};
			},
			toggle:function(name,obj){
				if(obj.classList && obj.classList.toggle){
					obj.classList.toggle(name);
				}else{
					var cn=obj.className.split(/\s+/);
					var index=cn.indexOf(name);
					if(index==-1){
						cn.push(name);
						obj.className=cn.join(' ');
					}else{
						cn.splice(index,1);
						obj.className=cn.join(' ');
					};
				};
			},
			item:function(index,obj){
				if(obj.classList && obj.classList.item){
					return obj.classList.item(index);
				}else{
					var cn=obj.className.split(/\s+/);
					var value=cn[index];
					return value;
				};
			},
			contains:function(name,obj){
				if(obj.classList && obj.classList.contains){
					return obj.classList.contains(name);
				}else{
					var cn=obj.className.split(/\s+/);
					return cn.indexOf(name)!=-1;
				};
			},
		};


		var G_container=document.documentElement;

		//打开的图片对象.
		function PicObj(src,img,naturalSize){
			this.src=src;
			this.naturalSize=naturalSize;
			this.img=img;
			this.init();
		};

		PicObj.all=[];
		PicObj.zIndex=PicObj.iniZIndex=110000;
		PicObj.blurAll=function(e){//当点击页面的任何地方时,blur所有的图片窗口.
			var currentFocused=PicObj.currentFocused;
			if(currentFocused){
				currentFocused.blur();
			};
		};
		PicObj.focusNext=function(){
			var all=PicObj.all;
			var max;
			for(var i=0,ii=all.length,all_i;i<ii;i++){
				all_i=all[i];
				if(!max){
					max=all_i;
					continue;
				}else{
					if(all_i.zIndex > max.zIndex){
						max=all_i;
					}
				};
			};
			if(max){
				max.focus();
			};
		};
		PicObj.escRemoveFocused=function(e){
			if(e.keyCode!==27)return;
			var currentFocused=PicObj.currentFocused;
			if(currentFocused){
				currentFocused.remove();
			};
		},
		PicObj.mode=(function(){
			var mode;
			if(support.transform && support.canvas){
				if(prefs.mode=='auto' || prefs.mode=='css3'){
					mode='css3';
				}else{
					mode='canvas'
				};
			}else{
				if(support.transform){
					mode='css3';
				}else if(support.canvas){
					mode='canvas';
				}else{
					mode=false;
				};
			};
			return mode;
		})();

		PicObj.prototype={
			remove:function(closeAll){
				PicObj.all.splice(PicObj.all.indexOf(this),1);//移除自己.
				if(PicObj.all.length==0){//没有对象的时候.
					document.removeEventListener('keydown',PicObj.escRemoveFocused,false);
					document.removeEventListener('mousedown',PicObj.blurAll,false);
					PicObj.zIndex=PicObj.iniZIndex;
					if(PicObj.overlayer){
						PicObj.overlayer.style.display='none';
					};
				};
				if(!closeAll && this.isFocused){//如果关闭的是最前面的图片,那么聚焦下一张图片.
					PicObj.focusNext();
				};
				this.closed=true;
				this.container.parentNode.removeChild(this.container);
			},
			blur:function(){
				if(!this.isFocused)return;
				this.isFocused=false;
				PicObj.currentFocused=null;
				if(!this.closed){//如果对象没有被关闭.
					this.container.title='点击激活';
					classList.add('pv_pic-container-blur',this.container);
					classList.remove('pv_pic-container-focus',this.container);
					classList.remove('pv_close-pic-focus',this.close_pic);
					classList.remove('pv_pic-tools-container-focus',this.pic_tools_container);
				};
			},
			focus:function(){
				if(this.isFocused){
					return;
				};
				var currentFocused=PicObj.currentFocused;//当前的焦点
				if(currentFocused){//移除focus样式.
					currentFocused.blur();
				};
				PicObj.currentFocused=this;
				this.container.removeAttribute('title');
				classList.remove('pv_pic-container-blur',this.container);
				classList.add('pv_pic-container-focus',this.container);
				classList.add('pv_close-pic-focus',this.close_pic);
				classList.add('pv_pic-tools-container-focus',this.pic_tools_container);
				this.isFocused=true;
				PicObj.zIndex+=1;
				this.zIndex=PicObj.zIndex;
				this.container.style.zIndex=this.zIndex;
			},
			overlayer:function(){
				if(!prefs.overlayer.show)return;
				var overlayer=PicObj.overlayer;
				if(!overlayer){
					overlayer=document.createElement('span');
					PicObj.overlayer=overlayer;
					overlayer.id='pv_overlayer';
					if(prefs.overlayer.dbcCloseAll){
						overlayer.addEventListener('dblclick',function(e){
							e.preventDefault();
							e.stopPropagation();
							var all=PicObj.all;
							for(var i=all.length-1;i>=0;i--){
								all[i].remove(true);
							};
						},false);
					};
					G_container.appendChild(overlayer);
				};
				var oStyle=overlayer.style;
				var fullPS=this.getFullPageSize();
				oStyle.width=fullPS.w+'px';
				oStyle.height=fullPS.h+'px';
				oStyle.display='block';
			},
			getCurImgSize:function(){
				var img=this.img;
				if(this.isCanvasMode()){
					return this.imgCanvasRalatived.imgClient;
				};
				var ret={};
				if(envir.opera){
					ret.w=img.clientWidth;
					ret.h=img.clientHeight;
				}else{
					ret.w=img.width;
					ret.h=img.height;
				};
				return ret;
			},
			fitToScreen:function(){
				if(!prefs.firstOpenFTS)return;
				var containerSize=this.getContainerSize();
				var windowSize=this.getWindowSize();
				var imgStyle=this.img.style;
				var floor=Math.floor;

				var curImgSize=this.getCurImgSize();
				if(containerSize.h > windowSize.h || containerSize.w > windowSize.w){
					if(containerSize.h/containerSize.w >= windowSize.h/windowSize.w){
						imgStyle.height =floor(curImgSize.h-(containerSize.h - windowSize.h) -10) + 'px';
					}else{
						imgStyle.width=floor(curImgSize.w-(containerSize.w-windowSize.w) -10) + 'px';
					};
				};
			},
			keepScreenInside:function(){//保持按钮在屏幕里面.
				var containerSize=this.getContainerSize();
				var windowSize=this.getWindowSize();
				var pInt=parseInt;

				var positionCP=getTargetPosition(this.close_pic);
				var cpStyle=this.close_pic.style;

				var oriRight=pInt(cpStyle.right);
				var newRight=oriRight+positionCP.r-windowSize.w;
				if(positionCP.r>windowSize.w){
					newRight=Math.min(newRight,containerSize.w-15);
				}else{
					newRight=Math.max(newRight,-15);
				};
				cpStyle.right = newRight +'px'


				var oriTop=pInt(cpStyle.top);
				var newTop=oriTop - positionCP.t;
				if(positionCP.t<0){
					newTop=Math.min(newTop,containerSize.h-15);
				}else{
					newTop=Math.max(newTop,-15);
				};
				cpStyle.top = newTop +'px'
//=============================================
				var positionPTC=getTargetPosition(this.pic_tools_container);
				var ptcStyle=this.pic_tools_container.style;

				var oriLeft=pInt(ptcStyle.left);
				var newLeft=oriLeft-positionPTC.l+6;
				if(positionPTC.l<0){
					newLeft=Math.min(newLeft,containerSize.w-42);
				}else{
					newLeft=Math.max(newLeft,-42);
				};
				ptcStyle.left=newLeft + 'px';

				var oriTop=pInt(ptcStyle.top);
				var newTop=oriTop-positionPTC.t + 6;
				if(positionPTC.t<0){
					newTop=Math.min(newTop,containerSize.h);
				}else{
					newTop=Math.max(newTop,0);
				};
				ptcStyle.top=newTop + 'px';
//==============================================
				var positionSB=getTargetPosition(this.statusBar);
				var sbStyle=this.statusBar.style;

				var oriLeft=pInt(sbStyle.left);
				var newLeft=oriLeft-positionSB.l+3;
				if(positionSB.l<0){
					newLeft=Math.min(newLeft,containerSize.w);
				}else{
					newLeft=Math.max(newLeft,3);
				};
				sbStyle.left=newLeft + 'px';

				var oriBottom=pInt(sbStyle.bottom);
				var newBottom=oriBottom + positionSB.b - windowSize.h+3;
				if(positionCP.b>windowSize.h){//超出
					newBottom=Math.min(newBottom,containerSize.h);
				}else{
					newBottom=Math.max(newBottom,3);
				};
				sbStyle.bottom=newBottom + 'px';
			},
			getWindowSize:getWindowSize,
			getFullPageSize:function(){
				return {
					h:Math.max(document.documentElement.scrollHeight,document.body.scrollHeight),
					w:Math.max(document.documentElement.scrollWidth,document.body.scrollWidth),
				};
			},
			getContainerSize:function(){
				var container=this.container;
				return {
					h:container.offsetHeight,
					w:container.offsetWidth,
				};
			},
			verticalCenter:function(){
				var containerSize=this.getContainerSize();
				var windowSize=this.getWindowSize();
				var floor=Math.floor;
				var cStyle=this.container.style;
				cStyle.top=floor((windowSize.h - containerSize.h)/2) + window.scrollY +'px';
				cStyle.left=floor((windowSize.w - containerSize.w)/2) + window.scrollX +'px';
			},
			borderFlashRun:function(){
				var colorArray=this.borderFlashColorArray;
				var color=colorArray[0];
				var cStyle=this.container.style;
				cStyle.borderColor=color;
				colorArray.shift();
				if(colorArray.length==0){
					cStyle.removeProperty('border-color')
					return;
				};
				var self=this;
				setTimeout(function(){
					self.borderFlashRun();
				},200);
			},
			borderFlash:function(){
				this.borderFlashColorArray=['red','green','blue'];
				this.borderFlashRun();
			},
			resetRotate:function(){
				if(this.mode=='canvas'){//判断还没有开始旋转的情况.
					if(!this.isCanvasMode()){
						//alert('还没开始旋转呢.');
						return;
					};
				}else{
					if(this.rotatedRadian==0)return;
				};
				//.........
				var cStyle=this.container.style;
				var cSize_bef=this.getContainerSize();
				var pInt=parseInt;
				var cOffset={
					top:pInt(cStyle.top),
					left:pInt(cStyle.left),
				};
				this.mRadian=this.rotatedRadian=this.preRadian=0;//旋转重置为0;
				if(this.mode=='canvas'){
					if(this.canRestoreToImg()){
						this.restoreToImg();
					}else{
						var rotatedSize=this.getRotatedImgSize();//旋转后图片大小
						this.draw(rotatedSize);
					};
				}else{
					var imgStyle=this.img.style;
					imgStyle.top=0;
					imgStyle.left=0;
					var transform=imgStyle[support.transform];
					imgStyle[support.transform]=transform.replace(/rotate\s*\([^)]+\)\s*/i,'');
					cStyle.width='auto';
					cStyle.height='auto';
				};
				var cSize_aft=this.getContainerSize();
				cStyle.top=cOffset.top - (cSize_aft.h - cSize_bef.h)/2 +'px';
				cStyle.left=cOffset.left - (cSize_aft.w - cSize_bef.w)/2 +'px';
			},
			getRotatedImgSize:function(){
				var mRadian=this.mRadian;
				var imgSize=this.getCurImgSize();
				if(!mRadian)return imgSize;
				return {
					h:imgSize.h* Math.cos(mRadian) + imgSize.w * Math.sin(mRadian),
					w:imgSize.h* Math.cos(Math.PI/180 * 90 - mRadian) + imgSize.w * Math.sin(Math.PI/180 * 90 - mRadian),
				};
			},
			loadIntoCanvas:function(){
				if(!this.img.complete){
					this.statusBarMessage('canvas模式必须等待图片完全载入完!!');
					return false;
				};
				var cas=this.imgCanvas;
				var ctx=this.imgCasCtx;
				var img=this.img;
				if(!cas){
					cas=document.createElement('canvas');
					this.imgCanvas=cas;
					cas.className='pv_pic_canvas';
					ctx=cas.getContext('2d');
					this.imgCasCtx=ctx;
					img.parentNode.insertBefore(cas,img);
				};
				if(img.style.display!='none'){
					var imgSize=this.getCurImgSize();
					cas.width=imgSize.w;
					cas.height=imgSize.h;
					this.imgCanvasRalatived.imgClient=imgSize;//放在canvas里面的图片,我们无法得到图片的 clientWH,所以必须缓存他.
					this.imgCanvasRalatived.zoom=this.zoom;//保存缩放比.
					ctx.save();
					ctx.translate(cas.width/2,cas.height/2);
					ctx.scale(this.flipHori? -this.zoom : this.zoom,this.flipVert? -this.zoom : this.zoom);
					ctx.drawImage(img,-this.naturalSize.w/2,-this.naturalSize.h/2);
					ctx.restore();
					img.style.display='none';
					cas.style.display='block';
				};
			},
			canRestoreToImg:function(){
				return !this.flipHori && !this.flipVert && !this.rotatedRadian;
			},
			restoreToImg:function(){
				if(!this.isCanvasMode())return;
				this.imgCanvas.style.display='none';
				this.img.style.display='block';
				if(this.imgCanvasRalatived.zoom!=this.zoom){
					this.zoomIO(this.zoom>this.imgCanvasRalatived.zoom,this.zoom);
				};
			},
			draw:function(newSize){
				var imgCasCtx=this.imgCasCtx;
				var imgCanvas=this.imgCanvas;
				if(newSize){
					imgCanvas.width=newSize.w;
					imgCanvas.height=newSize.h;
				};
				imgCasCtx.save();
				imgCasCtx.clearRect(0,0,imgCanvas.width,imgCanvas.height);
				imgCasCtx.translate(imgCanvas.width/2,imgCanvas.height/2);
				imgCasCtx.rotate(this.rotatedRadian);
				imgCasCtx.scale(this.flipHori? -this.zoom : this.zoom , this.flipVert? -this.zoom : this.zoom);
				imgCasCtx.drawImage(this.img,-this.naturalSize.w/2,-this.naturalSize.h/2);
				imgCasCtx.restore();
			},
			flip:function(hori){
				if(!this.mode)return;//不支持翻转.
				if(this.mode=='canvas'){
					if(this.loadIntoCanvas()===false)return;
					if(this.canRestoreToImg()){
						var cStyle=this.container.style;
						var cOffset={
							top:cStyle.top,
							left:cStyle.left,
						};
						this.restoreToImg();
						cStyle.top=cOffset.top;
						cStyle.left=cOffset.left;
						this.keepScreenInside();
					}else{
						this.draw();
					};
					return;
				};
				if(hori){//水平翻转.
					if(this.flipHori){//翻转
						this.img.style[support.transform]+=' scaleX(-1)';
					}else{//取消
						var transform=this.img.style[support.transform];
						this.img.style[support.transform]=transform.replace(/scaleX\s*\([^)]+\)\s*/i,'');
					};
				}else{//垂直翻转
					if(this.flipVert){//翻转
						this.img.style[support.transform]+=' scaleY(-1)';
					}else{//取消
						var transform=this.img.style[support.transform];
						this.img.style[support.transform]=transform.replace(/scaleY\s*\([^)]+\)\s*/i,'');
					};
				};
			},
			containerClickHandler:function(e){
				if(e.button!=0)return;//左键点击.
				e.preventDefault();
				e.stopPropagation();
				var target=e.target;
				if(target==this.close_pic){//点击关闭按钮
					this.remove();
				}else if(target==this.img || target==this.container || target==this.imgCanvas){//处理 适应屏幕--100%
					/*
					if(this.moveORrotate)return;
					var windowSize=this.getWindowSize();
					var containerSize=this.getContainerSize();
					if(this.zoom!=1)this.zoomIO(1>this.zoom,1);
					if(true){//如果图片没有屏幕大,缩放到适应屏幕,居中
						//
					};
					*/
				};
			},
			isCanvasMode:function(){
				return this.img.style.display=='none';
			},
			getZoomSize:function(next){
				var range=PicObj.zoomRange;
				var cur=this.zoom;
				var i,ii,range_i;
				var ret;
				if(next){
					for(i=0,ii=range.length,range_i;i<ii;i++){
						range_i=range[i];
						if(range_i>cur){
							ret=range_i;
							break;
						}
					};
				}else{
					for(i=range.length-1;i>=0;i--){
						range_i=range[i];
						if(range_i<cur){
							ret=range_i;
							break;
						};
					};
				};
				return ret;
			},
			zoomIO:function(zoomIn,zoom){
				zoom = zoom || this.getZoomSize(zoomIn);
				if(!zoom || zoom<=0){
					return;
				};

				var curImgSize=this.getCurImgSize();
				var minSizeL=this.minSizeL;
				if((curImgSize.w<=minSizeL.w || curImgSize.h<=minSizeL.h) && !zoomIn){//到达最小限度,不允许缩放.
					return;
				};

				var floor=Math.floor;
				var nextSize={
					w:floor(this.naturalSize.w * zoom),
					h:floor(this.naturalSize.h * zoom),
				};

				if(!zoomIn){//缩小,超过最小限度,那么强制最小高宽.
					if(nextSize.w < minSizeL.w || nextSize.h < minSizeL.h){
						var scale=nextSize.w/nextSize.h;
						if(scale < minSizeL.w/minSizeL.h){
							nextSize.w=minSizeL.w;
							nextSize.h=floor(nextSize.w/scale);
						}else{
							nextSize.h=minSizeL.h;
							nextSize.w=floor(nextSize.h * scale);
						};
						zoom=Number((nextSize.w/this.naturalSize.w).toFixed(2));
					};
				};

				var minLimit;
				if(nextSize.w == minSizeL.w || nextSize.h == minSizeL.h)minLimit=true;

				this.zoom=zoom;

				var cSize_bef=this.getContainerSize();//变换之前div大小..

				var cStyle=this.container.style;

				if(this.isCanvasMode()){
					this.imgCanvasRalatived.imgClient=nextSize;
					var rotatedSize=this.getRotatedImgSize();//变换之后图片矩形的大小
					cStyle.width='auto';
					cStyle.height='auto';
					this.draw(rotatedSize);
				}else{
					var imgStyle=this.img.style;
					if(zoom==1){
						imgStyle.height='auto';
						imgStyle.width='auto';
					}else{
						imgStyle.height=nextSize.h + 'px';
						imgStyle.width=nextSize.w + 'px';
					};
					var rotatedSize=this.getRotatedImgSize();//变换之后图片矩形的大小
					var rotatedCliSize=this.getCurImgSize();//图片的client
					imgStyle.top=(rotatedSize.h - rotatedCliSize.h)/2 + 'px';
					imgStyle.left=(rotatedSize.w - rotatedCliSize.w)/2 + 'px';
					cStyle.width=rotatedSize.w + 'px';
					cStyle.height=rotatedSize.h + 'px';
				};


				var cSize_aft=this.getContainerSize();//变换之后div大小..

				var pInt=parseInt;
				var divOffset={
					top:pInt(cStyle.top),
					left:pInt(cStyle.left),
				};

				cStyle.top=floor(divOffset.top - (cSize_aft.h - cSize_bef.h)/2) +'px';
				cStyle.left=floor(divOffset.left - (cSize_aft.w - cSize_bef.w)/2) +'px';
				this.keepScreenInside();
				this.statusBarMessage('比例:' + zoom +'x'+ (minLimit? '(最小缩放极限)' : ''));
			},
			wheelHandler:function(e){
				if(!this.isFocused)return;//不是焦点,不处理.
				e.preventDefault();
				e.stopPropagation();
				var delta;
				if(e.wheelDelta){//w3c 
					delta = e.wheelDelta/120; 
				}else if(e.detail){
					delta = -e.detail/3;
				};
				if(delta>0){//向上滚.放大.
					this.zoomIO(true);
				}else{//向下滚.缩小
					this.zoomIO();
				};
			},
			toolsContainerMouseDownHandler:function(e){
				if(e.button!=0)return;//左键点击.
				e.preventDefault();
				e.stopPropagation();
				var target=e.target;
				//法克 firefox 3.6 switch语句的对比对象时 居然不能正常工作...
				if(target==this.tool_move){
					if(this.selectedTool=='move')return;
					this.selectedTool='move';
					classList.add('pv_pic-tool-selected',this.tool_move);
					classList.remove('pv_pic-tool-selected',this.tool_rotate);
				}else if(target==this.tool_rotate){
					if(this.selectedTool=='rotate')return;
					this.selectedTool='rotate';
					classList.add('pv_pic-tool-selected',this.tool_rotate);
					classList.remove('pv_pic-tool-selected',this.tool_move);
				}else if(target==this.tool_flipHori){
					this.flipHori=!this.flipHori;
					if(this.flipHori){
						classList.add('pv_pic-tool-selected',this.tool_flipHori);
					}else{
						classList.remove('pv_pic-tool-selected',this.tool_flipHori);
					};
					this.flip(true);
				}else if(target==this.tool_flipVert){
					this.flipVert=!this.flipVert;
					if(this.flipVert){
						classList.add('pv_pic-tool-selected',this.tool_flipVert);
					}else{
						classList.remove('pv_pic-tool-selected',this.tool_flipVert);
					};
					this.flip(false);
				};
			},
			toolsContainerDblClickHandler:function(e){
				if(e.button!=0)return;//左键点击.
				e.preventDefault();
				e.stopPropagation();
				var target=e.target;
				if(target==this.tool_move){
					this.verticalCenter();
					this.statusBarMessage('垂直居中');
					this.keepScreenInside();
				}else if(target==this.tool_rotate){
					this.resetRotate();
					this.statusBarMessage('重置旋转');
					this.keepScreenInside();
				};
			},
			rotateIndicatorDraw:function(){
				var canvas=PicObj.rotateIndicator;
				var ctx=PicObj.rotateIndicatorCtx;
				ctx.clearRect(0,0,canvas.width,canvas.height);
				ctx.save();
				ctx.translate(canvas.width/2,canvas.height/2);
				var img=PicObj.rotateIndicatorImgBG;
				ctx.drawImage(img,-img.width/2,-img.height/2);
				ctx.rotate(this.rotatedRadian);
				img=PicObj.rotateIndicatorImgP;
				ctx.drawImage(img,-img.width/2,-img.height/2);
				ctx.restore();
			},
			rotateIndicatorHide:function(){
				var indicator=PicObj.rotateIndicator;
				if(indicator){
					indicator.style.display='none';
				};
			},
			rotateIndicator:function(offset){
				var indicator=PicObj.rotateIndicator;
				if(!indicator){
					indicator=document.createElement('canvas');
					indicator.id='pv-rotate-indicator';
					PicObj.rotateIndicator=indicator;
					PicObj.rotateIndicatorCtx=indicator.getContext('2d');
					indicator.width=indicator.height=200;
					var img=new Image();
					img.src=prefs.icons.rotateIndicatorBG;
					PicObj.rotateIndicatorImgBG=img;
					img=new Image();
					img.src=prefs.icons.rotateIndicatorPointer;
					PicObj.rotateIndicatorImgP=img;
					G_container.appendChild(indicator);
				};
				indicator.style.top=offset.y-indicator.height/2 + 'px';
				indicator.style.left=offset.x-indicator.width/2 + 'px';
				indicator.style.display='block';
				this.rotateIndicatorDraw();
			},
			statusBarMessage:function(textContent){
				var statusBar=this.statusBar;
				statusBar.textContent=textContent;
				var sbStyle=statusBar.style;
				sbStyle.visibility='visible';
				clearTimeout(this.statusBarMessageTimer);
				this.statusBarMessageTimer=setTimeout(function(){
					sbStyle.visibility='hidden';
				},2000);
			},
			addStyle:function(){
				if(PicObj.style)return;
				var style=document.createElement('style');
				PicObj.style=style;
				style.type='text/css';
				style.textContent='\
					#pv_overlayer{\
						position:absolute;\
						top:0;\
						left:0;\
						padding:0;\
						margin:0;\
						border:none;\
						z-index:109999;\
						background:none;\
						background-color:'+prefs.overlayer.color+';\
					}\
					.pv_pic-container{\
						position:absolute;\
						width:auto;\
						height:auto;\
						margin:0;\
						padding:6px;\
						border:1px solid transparent;\
						background:none;\
						background-color:rgba(0,0,0,0.7);\
						opacity:1;\
						-moz-border-radius:5px;\
						-webkit-border-radius:5px;\
						border-radius:5px;\
					}\
					.pv_pic,\
					.pv_pic_canvas,\
					#pv-rotate-indicator{\
						margin:0;\
						padding:0;\
						border:none;\
					}\
					#pv-rotate-indicator{\
						position:absolute;\
						z-index:999999;\
					}\
					.pv_pic{\
						width:auto;\
						height:auto;\
						position:relative;\
						top:0;\
						left:0;\
						image-rendering:optimizeQuality;\
					}\
					.pv_close-pic{\
						cursor:pointer;\
						position:absolute;\
						width:30px;\
						height:30px;\
						margin:0;\
						border:none;\
						padding:0;\
						background:transparent url("'+prefs.icons.close+'") no-repeat scroll center center;\
						opacity:0;\
						-o-transition:opacity 0.2s ease-in-out;\
						-moz-transition:opacity 0.2s ease-in-out;\
						-webkit-transition:opacity 0.2s ease-in-out;\
						transition:opacity 0.2s ease-in-out;\
					}\
					.pv_close-pic-focus{\
						opacity:0.7;\
					}\
					.pv_pic-container-blur:hover .pv_close-pic{\
						opacity:0.8;\
					}\
					.pv_pic-container-focus{\
						-moz-box-shadow:0 0 8px 0px rgba(0,0,0,0.9);\
						-webkit-box-shadow:0 0 8px 0px rgba(0,0,0,0.9);\
						box-shadow:0 0 8px 0px rgba(0,0,0,0.8);\
						border:1px solid rgba(250,250,250,0.9);\
					}\
					.pv_close-pic:hover{\
						opacity:0.98!important;\
					}\
					.pv_pic-tools-container{\
						position:absolute;\
						border:1px solid white;\
						background:none;\
						background-color:rgba(0,0,0,0.8);\
						margin:0;\
						padding:3px;\
						-moz-border-radius:6px;\
						-webkit-border-radius:6px;\
						border-radius:6px;\
						opacity:0;\
						-moz-box-shadow:0 0 8px 0px rgba(0,0,0,0.9);\
						-webkit-box-shadow:0 0 8px 0px rgba(0,0,0,0.9);\
						box-shadow:0 0 8px 0px rgba(0,0,0,0.8);\
						-o-transition:opacity 0.2s ease-in-out;\
						-moz-transition:opacity 0.2s ease-in-out;\
						-webkit-transition:opacity 0.2s ease-in-out;\
						transition:opacity 0.2s ease-in-out;\
					}\
					.pv_pic-tools-container-focus{\
						opacity:0.7;\
					}\
					.pv_pic-container-blur:hover .pv_pic-tools-container{\
						opacity:0.8;\
					}\
					.pv_pic-tools-container:hover{\
						opacity:0.96!important;\
					}\
					.pv_pic-tool{\
						display:block;\
						margin:0 2px 3px;\
						cursor:pointer;\
						color:white;\
						font-size:12px;\
						border:1px solid transparent;\
					}\
					.pv_pic-tool:hover{\
						background-color:#5D0300;\
					}\
					.pv_pic-tool:active{\
						border-top-width:2px;\
						border-left-width:2px;\
						border-right-width:0;\
						border-bottom-width:0;\
					}\
					.pv_pic-tool-selected{\
						background-color:red!important;\
					}\
					.pv_pic-tools-separator{\
						display:block;\
						width:100%\
						height:0;\
						border:none;\
						padding:0;\
						margin:3px 0;\
						border-top:1px solid white;\
					}\
					.pv_status-bar{\
						position:absolute;\
						margin:0;\
						border:none;\
						padding:0 10px 0 2px;\
						font-size:13px;\
						background:none;\
						background-color:rgba(0,0,0,0.7);\
						color:white;\
						visibility:hidden;\
						line-height:22px;\
						-moz-box-shadow:0 0 8px 0px rgba(0,0,0,0.8);\
						-webkit-box-shadow:0 0 8px 0px rgba(0,0,0,0.8);\
						box-shadow:0 0 8px 0px rgba(0,0,0,0.8);\
						-moz-border-radius:0 5px 0 0;\
						-webkit-border-radius:0 5px 0 0;\
						border-radius:0 5px 0 0;\
					}\
				';
				G_container.appendChild(style);
			},
			init:function(){
				this.addStyle();
				var self=this;

				var container=document.createElement('span');
				this.container=container;
				container.className='pv_pic-container';
				container.style.cssText='\
					top:-99999px;\
					left:-99999px;\
				';

				var mode=PicObj.mode;
				this.mode=mode;

				this.moveORrotate=false;//判断是否是做完移动或者旋转后,触发的click事件.

				var oriOffset;
				var oriMouseCoor;
				function boxMove(e){
					self.moveORrotate=true;
					var mouseCoor={
						x:e.pageX,
						y:e.pageY,
					};
					var cStyle=container.style;
					cStyle.top=mouseCoor.y-oriMouseCoor.y + oriOffset.top +'px';
					cStyle.left=mouseCoor.x-oriMouseCoor.x + oriOffset.left +'px';
				};

				function moveOver(){
					if(self.moveORrotate)self.keepScreenInside();
					document.removeEventListener('mousemove',boxMove,false);
					document.removeEventListener('mouseup',moveOver,false);
				};

				var iniBoxSize;
				var shiftKey;
				this.rotatedRadian=this.preRadian=this.mRadian=0;
				var shiftRotateStep=prefs.shiftRotateStep * Math.PI/180;
				function boxRotate(e){
					self.moveORrotate=true;
					var mouseCoor={
						x:e.pageX,
						y:e.pageY,
					};
					var radian=Math.atan2(mouseCoor.y - oriMouseCoor.y,mouseCoor.x - oriMouseCoor.x);
					radian += self.preRadian;//加上 上一回旋转时的旋转角度

					/////////////
					var PI=Math.PI;

					if(radian>0){// 减去360度的重复.
						while(radian>=2*PI){
							radian-=2*PI;
						};
					}else if(radian<0){
						while(radian<0){
							radian+=2*PI;
						};
					};

					if(shiftKey){
						var mo=radian % shiftRotateStep;
						radian-=mo;
						if(radian==self.rotatedRadian){
							return;
						};
					};

//////////////////////
					var mRadian=radian;
					if(mRadian<0){
						mRadian+=2*PI;
					};
					if(mRadian>PI){
						mRadian=2*PI-mRadian;
					};
					if(mRadian>1/2*PI){
						mRadian=PI-mRadian;
					};

					self.mRadian=mRadian;//保存,用来计算图片旋转上,所等同的矩形大小.

					var rotatedSize=self.getRotatedImgSize();//旋转后图片大小



					var cStyle=container.style;
					var pInt=parseInt;

					self.rotatedRadian=radian;//保存已经旋转的角度
					if(mode=='canvas'){
						cStyle.width='auto';
						cStyle.height='auto';
						self.draw(rotatedSize);
					}else{
						cStyle.width=rotatedSize.w+'px';
						cStyle.height=rotatedSize.h+'px';
						var rotatedCliSize=self.getCurImgSize();//旋转后的图片clent size
						var imgStyle=self.img.style;
						imgStyle.top= (rotatedSize.h-rotatedCliSize.h)/2 + 'px';
						imgStyle.left= (rotatedSize.w-rotatedCliSize.w)/2 + 'px';
						var transform=imgStyle[support.transform];
						transform=transform.replace(/rotate\s*\([^)]+\)\s*/i,'');
						imgStyle[support.transform]=' rotate(' + radian + 'rad) '+transform;
					};
					self.rotateIndicatorDraw();

					var containerSize=self.getContainerSize();

					var nOffset={
						top:oriOffset.top-(containerSize.h-iniBoxSize.h)/2,
						left:oriOffset.left-(containerSize.w-iniBoxSize.w)/2,
					};

					cStyle.top=nOffset.top + 'px';
					cStyle.left=nOffset.left + 'px';
				};

				function rotateOver(){
					if(self.moveORrotate)self.keepScreenInside();
					self.statusBarMessage('已旋转:' + Math.round(self.rotatedRadian * 180 /Math.PI) + '°');
					self.preRadian=self.rotatedRadian;
					self.rotateIndicatorHide();
					document.removeEventListener('mousemove',boxRotate,false);
					document.removeEventListener('mouseup',rotateOver,false);
				};

				var pInt=parseInt;

				this.imgCanvasRalatived={};

				container.addEventListener('mousedown',function(e){//处理,旋转和平移
					e.preventDefault();
					e.stopPropagation();
					var target=e.target;
					var imgCanvas=self.imgCanvas;
					if(target!=container && target!=img && target!=imgCanvas)return;
					if(!self.isFocused){//没有聚焦,那么先聚焦.
						self.focus();
						self.keepScreenInside();
					};

					if(e.button!=0)return;//左键点击,才开始工作.
					self.moveORrotate=false;
					var cStyle=container.style;
					oriMouseCoor={//记录当前的鼠标位置.
						x:e.pageX,
						y:e.pageY,
					};
					oriOffset={//记录当前的容器定位的偏移值.
						top:pInt(cStyle.top),
						left:pInt(cStyle.left),
					};
					switch(self.selectedTool){
						case 'move':{
							document.addEventListener('mousemove',boxMove,false);
							document.addEventListener('mouseup',moveOver,false);
						}break;
						case 'rotate':{
							if(!mode)return;//不支持旋转
							if(mode=='canvas'){//第一次旋转的时候,为不支持css3 transform的浏览器 启动canvas,canvas旋转gif不会动.
								if(self.loadIntoCanvas()===false)return;
							};
							oriMouseCoor.x -=30;//向左偏移点.
							self.rotateIndicator(oriMouseCoor);
							shiftKey=e.shiftKey;//是否按住了 shift 键
							iniBoxSize=self.getContainerSize();
							document.addEventListener('mousemove',boxRotate,false);
							document.addEventListener('mouseup',rotateOver,false);
						}break;
					};
				},false);

				container.addEventListener('mouseover',function(e){//非聚焦图片,悬浮时,调整关闭按钮位置.
					if(self.isFocused)return;
					self.keepScreenInside();
				},false);

				container.addEventListener('click',function(e){//处理,放大/适应屏幕.关闭等等.
					self.containerClickHandler(e);
				},false);


				var close_pic=document.createElement('span');
				this.close_pic=close_pic;
				close_pic.title='关闭';
				close_pic.className='pv_close-pic';
				close_pic.style.cssText='\
					right:-15px;\
					top:-15px;\
				';


				var img=this.img;
				img.className='pv_pic';
				container.appendChild(img);
				container.appendChild(close_pic);

				//状态栏.
				var statusBar=document.createElement('span');
				this.statusBar=statusBar;
				statusBar.style.cssText='\
					bottom:3px;\
					left:3px;\
				';
				statusBar.className='pv_status-bar';
				container.appendChild(statusBar);


				if(!PicObj.zoomRange){//排列下数组,从小到大.
					PicObj.zoomRange=prefs.wheelZoom.zoomRange.sort(function(a,b){
						return a-b;
					});
				};

				container.addEventListener(support.wheelEvent,function(e){
					self.wheelHandler(e);
				},false)


				//工具栏部分操作.
				var pic_tools_container=document.createElement('span');
				pic_tools_container.className='pv_pic-tools-container';
				this.pic_tools_container=pic_tools_container;
				pic_tools_container.style.cssText='\
					top:0;\
					left:-42px;\
				';

				this.flipHori=this.flipVert=false;//翻转状态.

				pic_tools_container.addEventListener('mousedown',function(e){
					self.toolsContainerMouseDownHandler(e);
				},false);

				pic_tools_container.addEventListener('dblclick',function(e){
					self.toolsContainerDblClickHandler(e);
				},false);


				var tool_move=document.createElement('span');
				this.tool_move=tool_move;
				tool_move.className='pv_pic-tool pv_pic-tools-move';
				tool_move.title='移动,双击居中';
				tool_move.textContent='移动';

				this.selectedTool='move';
				classList.add('pv_pic-tool-selected',tool_move);

				var tool_rotate=document.createElement('span');
				this.tool_rotate=tool_rotate;
				tool_rotate.className='pv_pic-tool pv_pic-tools-rotate';
				tool_rotate.title='旋转,双击还原';
				tool_rotate.textContent='旋转';

				var tool_flipHori=document.createElement('span');
				this.tool_flipHori=tool_flipHori;
				tool_flipHori.className='pv_pic-tool pv_pic-tools-flip-hori';
				tool_flipHori.title='水平翻转';
				tool_flipHori.textContent='水翻';

				var tool_flipVert=document.createElement('span');
				this.tool_flipVert=tool_flipVert;
				tool_flipVert.className='pv_pic-tool pv_pic-tools-flip-vert';
				tool_flipVert.title='垂直翻转';
				tool_flipVert.textContent='垂翻';

				var tool_separator=document.createElement('span');
				tool_separator.className='pv_pic-tools-separator';

				pic_tools_container.appendChild(tool_move);
				pic_tools_container.appendChild(tool_rotate);
				pic_tools_container.appendChild(tool_separator);
				pic_tools_container.appendChild(tool_flipHori);
				pic_tools_container.appendChild(tool_flipVert);


				container.appendChild(pic_tools_container);
				G_container.appendChild(container);


				PicObj.all.push(this);//放入对象集合中.

				if(PicObj.all.length==1){
					document.addEventListener('keydown',PicObj.escRemoveFocused,false);//chrome keypress 不响应esc
					document.addEventListener('mousedown',PicObj.blurAll,false);
				};


				var minSizeL;//计算最小允许的缩放值
				minSizeL=prefs.wheelZoom.minZoomSizeLimit;
				if(this.naturalSize.w <= minSizeL.w || this.naturalSize.h <= minSizeL.h){
					minSizeL=this.naturalSize;
				};
				this.minSizeL=minSizeL;

				setTimeout(function(){
					self.fitToScreen();//适应屏幕
					self.focus();//聚焦
					self.verticalCenter();//垂直居中
					self.overlayer();//覆盖层
					self.zoom=Number((img.width/self.naturalSize.w).toFixed(2));//当前的缩放大小.
					self.keepScreenInside();//工具栏,关闭按钮,状态栏,屏幕里面显示.
					self.statusBarMessage('比例:'+self.zoom + 'x');//输出信息.
				},0);
			},
		};


		//放大镜类
		function MagnifierObj(img,naturalSize,target){
			this.img=img;
			this.naturalSize=naturalSize;
			this.target=target;
			this.init();
		};

		MagnifierObj.all=[];
		MagnifierObj.moveHandler=function(e){//放大镜的move事件处理函数.
			var all=MagnifierObj.all;
			for(var i=all.length-1;i>=0;i--){
				var self=all[i];
				var pageXY={
					x:e.pageX,
					y:e.pageY,
				};
				var range=self.range;
				if(pageXY.x >= range.ab.x && pageXY.x <= range.bb.x && pageXY.y >= range.ab.y && pageXY.y <= range.bb.y){//如果在某些范围内.
					var lastPP=self.lastPP;
					var diameter=self.diameter;
					if(self.needMove){
						if(pageXY.x < range.a.x){
							pageXY.x=range.a.x;
						}else if(pageXY.x > range.b.x){
							pageXY.x = range.b.x
						};
						if(pageXY.y < range.a.y){
							pageXY.y=range.a.y;
						}else if(pageXY.y > range.b.y){
							pageXY.y = range.b.y
						};
						lastPP={
							ratioW:(pageXY.x-range.a.x)/range.size.w,
							ratioH:(pageXY.y-range.a.y)/range.size.h,
						};
						self.move(pageXY);
						self.lastPP=lastPP;
					};
					if(!self.notAllowRedraw && self.needRedraw){
						var offset={
							x:-Math.ceil((lastPP.ratioW * (Math.max(self.naturalSize.w - diameter,0)))),
							y:-Math.ceil((lastPP.ratioH * (Math.max(self.naturalSize.h - diameter,0)))),
						};
						self.draw(offset);
					};
					break;
				};
			};
		};

		MagnifierObj.prototype={
			remove:function(){
				MagnifierObj.all.splice(MagnifierObj.all.indexOf(this),1);//从全局数组删除自己的存在.
				if(MagnifierObj.all.length == 0){//如果没有被放大镜监视的图片了,那么移除全局move监听.
					document.removeEventListener('mousemove',MagnifierObj.moveHandler,true);
				};
				window.removeEventListener('resize',this.resizeHandler,false);
				this.canvas.parentNode.removeChild(this.canvas);//移除dom
			},
			move:function(coor){
				var canvas=this.canvas;
				coor=coor || this.range.a;
				var canvasRadius=this.canvasRadius;
				var cstyle=canvas.style;
				cstyle.left=coor.x - canvasRadius + 'px';
				cstyle.top=coor.y - canvasRadius + 'px';
			},
			draw:function(offset){
				offset=offset;

				var radius=this.radius;
				var diameter=this.diameter;
				var coorCenter=this.coorCenter;
				var canvasDia=this.canvasDia;
				var expand=this.expand;
				var halfExpand=expand/2;
				var mg=prefs.magnifier;
				var border1=mg.borderWidth[0];
				var border2=mg.borderWidth[1];
				var firstBorderRadius=radius + border1;
				var secondBorderRadius=firstBorderRadius + border2;

				var context=this.context;
				context.save();
				context.clearRect(0,0,canvasDia,canvasDia);//清除画布.

				if(mg.shape=='circle'){
					context.beginPath();//绘制一个圆,作为遮罩.
					context.arc(coorCenter.x, coorCenter.y , radius , 0 , 2*Math.PI, true);
					context.fillStyle ='#000';
					context.fill();

					//context.globalCompositeOperation='source-in';//以上图为遮罩,装入图片.
					context.globalCompositeOperation='source-atop';//为了兼容 firefox 3.6
					context.drawImage(this.img, offset.x + halfExpand, offset.y + halfExpand);

					context.beginPath();//第一层边框.

					context.arc(coorCenter.x, coorCenter.y , firstBorderRadius , 0 , 2*Math.PI, true);
					context.globalCompositeOperation='destination-over';
					context.fillStyle =prefs.magnifier.borderColor[0];
					context.fill();

					context.beginPath();//第二层边框.
					context.arc(coorCenter.x, coorCenter.y , secondBorderRadius, 0 , 2*Math.PI, false);
					context.fillStyle =prefs.magnifier.borderColor[1];
					context.fill();
				}else{
					context.fillRect(halfExpand,halfExpand,diameter,diameter);

					context.globalCompositeOperation='source-atop';//为了兼容 firefox 3.6
					context.drawImage(this.img, offset.x + halfExpand, offset.y + halfExpand);

					context.globalCompositeOperation='destination-over';
					context.fillStyle =prefs.magnifier.borderColor[0];
					context.fillRect(halfExpand - border1, halfExpand - border1 ,firstBorderRadius * 2,firstBorderRadius * 2);

					context.fillStyle =prefs.magnifier.borderColor[1];
					context.fillRect(halfExpand - border1 - border2 , halfExpand - border1 - border2 ,secondBorderRadius * 2,secondBorderRadius * 2);
				};

				context.restore();
			},
			setRange:function(){
				var target=this.target;
				var tOffset=getTargetPosition(target);
				var size=getDisIS(target);
				var canvasRadius=this.canvasRadius;
				var range={//根据显示图片的创建,创建一个相应move事件的坐标范围. a 为左上角, b为右下角.
					ab:{
						x:tOffset.left - canvasRadius,
						y:tOffset.top - canvasRadius,
					},
					bb:{
						x:tOffset.left + size.w + canvasRadius,
						y:tOffset.top + size.h + canvasRadius,
					},
					a:{//左上角坐标.
						x:tOffset.left,
						y:tOffset.top,
					},
					b:{//右下角坐标
						x:tOffset.left + size.w,
						y:tOffset.top + size.h,
					},
					size:{//图片大小
						w:size.w,
						h:size.h,
					},
				};
				//C.log('范围',range);
				this.range=range;
				return range;
			},
			addStyle:function(){
				if(!MagnifierObj.style){
					var style=document.createElement('style');
					MagnifierObj.style=style;
					style.type='text/css';
					style.textContent='\
						.pv_magnifier-mask{\
							position:absolute;\
							top:-999;\
							left:-999;\
							margin:0;\
							padding:0;\
							border:none;\
							display:block;\
							background:none;\
							z-index:99999;\
						}\
					';
					G_container.appendChild(style);
				};
			},
			init:function(){
				this.addStyle();//样式装载.

				var self=this;
				this.lastPP={//鼠标相对图片的移动距离 和 图片宽高的比例.
					ratioW:0,
					ratioH:0,
				};

				MagnifierObj.all.push(this);

				if(MagnifierObj.all.length==1){//当加载第一个放大镜的时候,挂在全局监听,以后的不能挂.
					document.addEventListener('mousemove',MagnifierObj.moveHandler,true);
				};

				var naturalSize=this.naturalSize;

				var defaultDia=prefs.magnifier.radius * 2;
				var diameter=defaultDia;
				var target=this.target;

				if(prefs.magnifier.autoRadius){
					diameter=Math.min(defaultDia,naturalSize.w,naturalSize.h);//为了遮罩能包裹图片,取最小值.
					/*
					var size=getDisIS(target);
					size={
						h:size.h * 0.98,
						w:size.w * 0.98,
					};
					if(diameter > size.w || diameter > size.h){//考虑一种情况,如果当前图片比 diameter 还小的话,那么取当前图片的 90 % 的大小,好让遮罩不会一下盖住图片.
						diameter=Math.min(size.w,size.h);
					};
					*/
				};

				this.needMove=this.needRedraw=true;

				this.diameter=diameter;
				var radius=diameter/2;
				this.radius=radius;


				//如果遮罩的直径大于图片,那么不允许重绘,也没必要重绘.
				if(Math.max(diameter,naturalSize.w,naturalSize.h)==diameter){
					this.notAllowRedraw=true;
				};

				//C.log('mask的直径大小:',diameter);

				var expand= (prefs.magnifier.borderWidth[0] + prefs.magnifier.borderWidth[1])* 2;//画布弄大点,其他的地方用来画边框.
				if(expand % 2 !=0){//扩展,应该弄成个偶数,等下绘制圆的时候,不会移动到1/2像素处.
					expand +=1;
				};
				var canvasDia=diameter + expand;
				this.expand=expand;
				this.canvasDia=canvasDia;

				var canvasRadius=canvasDia/2;
				this.canvasRadius=canvasRadius;

				this.setRange();

				var coorCenter={//画布中心点.
					x:canvasRadius,
					y:canvasRadius,
				};
				this.coorCenter=coorCenter;

				var canvas=document.createElement('canvas');
				this.canvas=canvas;
				var context=canvas.getContext('2d');
				this.context=context;
				G_container.appendChild(canvas);
				canvas.width=canvas.height=canvasDia;
				canvas.className='pv_magnifier-mask';


				canvas.addEventListener('click',function(e){//点击暂停.
					self.needMove=self.needRedraw=!self.needMove;
				},false);

				canvas.addEventListener('dblclick',function(e){//双击自己,进行卸载.
					self.remove();
				},false);

				var resizeTimer;
				this.resizeHandler=function(){//调整窗口大小的时候,重新设定范围,并调整放大镜位置.
					clearTimeout(resizeTimer);
					resizeTimer=setTimeout(function(){
						var range=self.setRange();
						var lastPP=self.lastPP;
						var offset={
							x:range.size.w * lastPP.ratioW + range.a.x,
							y:range.size.h * lastPP.ratioH + range.a.y,
						};
						self.move(offset);
					},100);
				};

				window.addEventListener('resize',this.resizeHandler,false);
				var initOffset={
					x:0,
					y:0
				};
				if(this.notAllowRedraw){//遮罩的直径大于图片,将图片直接绘制在中心.
					initOffset={
						x:Math.floor((diameter-naturalSize.w)/2),
						y:Math.floor((diameter-naturalSize.h)/2),
					};
				};
				this.draw(initOffset);
				this.move();
			},
		};


		//imgReady
		function imgReady(img,load,ready,error){
			if(img.complete){
				load.call(img);
				return;
			};

			function go(type,e){
				switch(type){
					case 'load':{
						img.removeEventListener('load',load1,false);
						if(error){
							img.removeEventListener('error',error1,false);
						};
						clearInterval(readyInterval);
						load.call(img,e);
					}break;
					case 'ready':{
						ready.call(img);
					}break;
					case 'error':{
						clearInterval(readyInterval);
						img.removeEventListener('load',load1,false);
						img.removeEventListener('error',error1,false);
						error.call(img,e);
					}break;
				};
			};

			function load1(e){
				go('load',e);
			};

			img.addEventListener('load',load1,false);

			function error1(e){
				go('error',e);
			};

			if(error){
				img.addEventListener('error',error1,false);
			};

			var readyInterval;
			if(ready){
				readyInterval=setInterval(function(){//尽快的检测图片大小.
					if(img.width==0)return;
					clearInterval(readyInterval);
					go('ready');
				},99);
			};
		};


		//载入时,读取动画图标对象.
		function LoadingAnim(src,target,type,ctrlKey){
			this.src=src;
			this.target=target;
			this.type=type;
			this.ctrlKey=ctrlKey;
			this.init();
		};

		LoadingAnim.all=[];

		LoadingAnim.prototype={
			remove:function(){
				//从所有对象集合里面移除当前对象.
				LoadingAnim.all.splice(LoadingAnim.all.indexOf(this),1);
				//卸载监听
				window.removeEventListener('resize',this.resizeHandler,false);
				//删除dom
				this.container.parentNode.removeChild(this.container);
			},
			load:function(reload){
				if(reload!='reload')this.remove();
				C.log('成功载入:',this.src);
				var img=this.img;
				if(this.type=='original' || this.type=='current'){
					if(openInTopWindow && reload!='reload'){
						window.top.postMessage('from_pv_frame_window:' + xToString({
							src:this.src,
							waitImgLoad:this.waitImgLoad,
							size:{
								w:img.width,
								h:img.height
							},
						}),'*');

						var self=this;
						if(!topWindowExist){//确认顶层窗口的存在.
							setTimeout(function(){
								if(!topWindowExist){
									self.load('reload');
								};
							},100);
						};
						return;
					};
					new PicObj(this.src,img,{w:img.width,h:img.height});
				}else if(this.type=='magnifier'){
					new MagnifierObj(img,{w:img.width,h:img.height},this.target);
				};
			},
			errorMessage:function(){
				var span=document.createElement('span');
				span.className='pv_load-error-message';
				span.textContent='<load error>';
				G_container.appendChild(span);

				var rect=getTargetPosition(this.target);
				span.style.top=rect.top + 3 +'px';
				span.style.left=rect.left + 3 +'px';
				setTimeout(function(){
					G_container.removeChild(span);
				},999);
			},
			error:function(){
				this.remove();
				this.errorMessage();
				C.log('载入错误:',this.src);
			},
			cancle:function(e){
				e.preventDefault();
				this.img.src='';
				this.remove();
				C.log('载入中止:',this.src);
			},
			setPosition:function(){
				var position=getTargetPosition(this.target);
				var cStyle=this.container.style;
				cStyle.top=position.top +1 + 'px';
				cStyle.left=position.left +1 + 'px';
				cStyle.visibility='visible';
			},
			addStyle:function(){
				if(LoadingAnim.style)return;
				var style=document.createElement('style');
				LoadingAnim.style=style;
				style.type='text/css';
				style.textContent='\
					.pv_loading-anim-container{\
						width:auto;\
						height:auto;\
						border:none;\
						margin:0;\
						padding:0;\
						position:absolute;\
						z-index:100001;\
						opacity:0.8;\
						visibility:hidden;\
						-o-transition:opacity 0.2s ease-in-out;\
						-moz-transition:opacity 0.2s ease-in-out;\
						-webkit-transition:opacity 0.2s ease-in-out;\
						transition:opacity 0.2s ease-in-out;\
					}\
					.pv_loading-anim-container:hover{\
						opacity:1;\
					}\
					.pv_loading-anim-container > .pv_loading-anim{\
						float:left;\
						height:24px;\
						width:24px;\
						margin:0;\
						border:2px solid black;\
						padding:2px;\
						background-color:white;\
						background-position:center center;\
						background-repeat:no-repeat;\
						background-image:url("'+prefs.icons.loading+'");\
						-webkit-border-radius:20px;\
						-moz-border-radius:20px;\
						border-radius:20px;\
						-moz-box-shadow:1px 2px 3px #ccc;\
						-webkit-box-shadow:1px 2px 3px #ccc;\
						box-shadow:1px 2px 3px #ccc;\
					}\
					.pv_loading-anim-container > .pv_loading-cancle{\
						position:absolute;\
						right:-3px;\
						top:-3px;\
						height:12px;\
						width:12px;\
						margin:0;\
						border:2px solid black;\
						padding:0;\
						cursor:pointer;\
						-webkit-border-radius:20px;\
						-moz-border-radius:20px;\
						border-radius:20px;\
						background-color:white;\
						background-position:center center;\
						background-repeat:no-repeat;\
						background-image:url("'+prefs.icons.loadingCancle+'");\
						visibility:hidden;\
					}\
					.pv_loading-anim-container:hover .pv_loading-cancle{\
						visibility:visible;\
					}\
					.pv_load-error-message{\
						border:1px solid red;\
						background:none;\
						background-color: rgba(0, 0, 0, 0.8);\
						color:white;\
						position:absolute;\
						font-size:12px;\
						-moz-border-radius:3px;\
						-webkit-border-radius:3px;\
						border-radius:3px;\
						padding:3px;\
						font-style:italic;\
						font-weight:bold;\
						opacity:1;\
					}\
				';
				G_container.appendChild(style);
			},
			init:function(){
				this.addStyle();
				var container=document.createElement('span');
				this.container=container;
				container.className='pv_loading-anim-container';

				var loading_anim=document.createElement('span');
				this.loading_anim=loading_anim;
				loading_anim.className='pv_loading-anim';
				loading_anim.title='正在加载...稍等..';

				var loadingCancle=document.createElement('span');
				this.loadingCancle=loadingCancle;
				loadingCancle.title='取消加载';
				loadingCancle.className='pv_loading-cancle';

				container.appendChild(loading_anim);
				container.appendChild(loadingCancle);

				G_container.appendChild(container);
				this.setPosition();

				var self=this;

				var rstoHandler=function(){
					self.setPosition();
				};

				var resizeTimer;
				this.resizeHandler=function(){
					clearTimeout(resizeTimer);
					resizeTimer=setTimeout(rstoHandler,299);
				};

				window.addEventListener('resize',this.resizeHandler,false);

				//保存当前对象到对象集合里面.
				LoadingAnim.all.push(this);

				//取消加载.
				loadingCancle.addEventListener('click',function(e){
					self.cancle(e);
				},false);


				this.waitImgLoad= this.type=='magnifier' || (this.ctrlKey? !prefs.waitImgLoad : prefs.waitImgLoad);

				//载入失败.
				function errorHandler(e){
					self.error(e);
				};

				var loaded;
				function loadHandler(e){//成功载入
					if(loaded)return;
					loaded=true;
					self.load(e);
				};

				//尝试载入图片.
				var img=new Image();
				this.img=img;
				img.src=this.src;

				imgReady(img,loadHandler , this.waitImgLoad? null : loadHandler , errorHandler);
			},
		};



		//浮动工具栏
		function FloatBarObj(){
			this.init();
		};


		FloatBarObj.prototype={
			buttonSwitch:function(){
				if(this.noZoom){//如果没有缩放的图片上
					this.floatBar_viewOri.style.display='none';
					this.floatBar_magnifier.style.display='none';
					this.floatBar_viewCur.style.display='block';
				}else{
					this.floatBar_viewOri.style.display='block';
					var size=getDisIS(this.target);
					if(size.h < prefs.magnifier.minSizeLimit.height || size.w < prefs.magnifier.minSizeLimit.width){//如果显示的图片太小,就不显示放大镜图标,因为那啥,没有足够的空间移动.
						C.log('目标太小,不显示放大镜',this.target);
						this.floatBar_magnifier.style.display='none';
					}else{
						this.floatBar_magnifier.style.display='block';
					};
					this.floatBar_viewCur.style.display='block';
				};
			},
			setPosition:function(){
				var targetPosi=getTargetPosition(this.target);
				var windowSize=getWindowSize();
				var fbs=this.floatBar.style;


				var floatBarPosi=prefs.floatBar.position.toLowerCase().split(/\s+/);

				var offsetX=prefs.floatBar.offset.x;
				var offsetY=prefs.floatBar.offset.y;

				var setPosition={
					top:function(){
						var top=targetPosi.top;
						if(targetPosi.t < -offsetY){//满足图标被遮住的条件.
							top=window.scrollY;
							offsetY=0;
						};
						fbs.top=top + offsetY + 'px';
					},
					right:function(){
						var right=windowSize.w - targetPosi.r;
						if(right < offsetX){
							right= -window.scrollX;
							offsetX=0;
						}else{
							right -=window.scrollX;
						};
						fbs.right=right - offsetX + 'px';
					},
					bottom:function(){
						var bottom=windowSize.h-targetPosi.b;
						if(bottom <= offsetY){
							offsetY=0;
						};
						bottom -= window.scrollY;
						fbs.bottom=bottom - offsetY + 'px';
					},
					left:function(){
						var left=targetPosi.left;
						if(targetPosi.l < -offsetX){
							left=window.scrollX;
							offsetX=0;
						};
						fbs.left=left + offsetX + 'px';
					},
				};

				setPosition[floatBarPosi[0]]();
				setPosition[floatBarPosi[1]]();
			},
			show:function(){
				clearTimeout(this.hideTimer);
				this.setPosition();
				this.floatBar.style.visibility='visible';
				this.preTarget=this.target;//保存一下这个成功显示浮动栏的对象,后台由于检测,是否离开后,立马返回了这个对象.
			},
			showDelay:function(){
				var self=this;
				clearTimeout(this.showTimer);
				this.showTimer=setTimeout(function(){
					self.show();
				},prefs.floatBar.showDelay);
			},
			over:function(target,e,src,noZoom){
				var self=this;
				this.src=src;
				this.noZoom=noZoom;
				this.target=target;
				this.tSrc=target.src;

				var loadingImgs=LoadingAnim.all;
				for(var i=0,ii=loadingImgs.length,value ; i<ii ; i++){//读取中的图片,不显示浮动栏,调整读取图标的位置.
					value=loadingImgs[i];
					if(value.target==target){
						C.log('正在被读取,不显示浮动操作栏',target);
						value.setPosition();
						return;
					};
				};

					var allMagFiles=MagnifierObj.all;//被放大镜盯上的图片,不要显示浮动栏.
					for(var i=0,ii=allMagFiles.length,value ; i<ii ; i++){
						value=allMagFiles[i];
						if(value.target==target){
							C.log('目标被放大镜盯上了,不显示浮动操作栏',target);
							return;
						};
					};

				this.out(target);
				this.buttonSwitch();

				//返回上一个显示的图片上面,并且返回之前工具栏依然显示,那么保持显示.
				if(target==this.preTarget && this.floatBar.style.visibility=='visible'){
					C.log('返回上一次显示的对象:',target);
					this.show();
				}else{
					this.showDelay();
				};
			},
			out:function(target){
				var self=this;
				function imgOut(e){
					this.removeEventListener('mouseout',imgOut,false);
					if(self.floatBar.style.visibility=='hidden'){//如果本来就是隐藏的,那让它继续就那么藏着.
						clearTimeout(self.showTimer);
						return;
					};
					self.hideDelay();//否则启用延时消失.
				};
				target.addEventListener('mouseout',imgOut,false);
			},
			hide:function(){
				this.floatBar.style.visibility='hidden';
			},
			hideDelay:function(){
				var self=this;
				clearTimeout(this.hideTimer);
				this.hideTimer=setTimeout(function(){
					self.hide();
				},prefs.floatBar.hideDelay);
			},
			load:function(type,e){
				this.hide();
				new LoadingAnim(type=='current'? this.tSrc : this.src , this.target , type , e && e.ctrlKey);
			},
			isOpened:function(src){
				if(!prefs.multipleInstance.oneSrcOneInstance)return;
				var all=PicObj.all;
				src=src || this.src;
				for(var i=0,ii=all.length,othis;i<ii;i++){//看看是否已经是打开的图片,检测src是否一样,如果是打开的话,直接带到最前面.
					othis=all[i];
					if(src==othis.src){
						C.log('已经打开了的图片',src);
						othis.focus();
						othis.verticalCenter();
						othis.borderFlash();
						return true;
					};
				};
			},
			addStyle:function(){
				var style=document.createElement('style');
				style.type='text/css';
				style.textContent='\
					#pv_float-bar{\
						width:auto;\
						height:auto;\
						border:none;\
						margin:0;\
						padding:2px;\
						position:absolute;\
						z-index:99999;\
						opacity:0.8;\
						visibility:hidden;\
						-o-transition:opacity 0.2s ease-in-out;\
						-moz-transition:opacity 0.2s ease-in-out;\
						-webkit-transition:opacity 0.2s ease-in-out;\
						transition:opacity 0.2s ease-in-out;\
					}\
					#pv_float-bar:hover{\
						opacity:1;\
					}\
					#pv_float-bar-viewori{\
						background-image:url("'+prefs.icons.actualSize+'");\
					}\
					#pv_float-bar-magnifier{\
						background-image:url("'+prefs.icons.magnifier+'");\
					}\
					#pv_float-bar-viewcur{\
						background-image:url("'+prefs.icons.noZoom+'");\
					}\
					#pv_float-bar > span{\
						cursor:pointer;\
						float:left;\
						height:22px;\
						width:24px;\
						margin:0 5px 0 0;\
						border:none;\
						padding:0;\
						background-position:0 0;\
						background-repeat:no-repeat;\
						-o-transition:background-position 0.2s ease-in-out;\
						-moz-transition:background-position 0.2s ease-in-out;\
						-webkit-transition:background-position 0.2s ease-in-out;\
						transition:background-position 0.2s ease-in-out;\
					}\
					#pv_float-bar > span:last-child{\
						margin-right:0!important;\
					}\
					#pv_float-bar > span:hover{\
						background-position:-25px 0;\
					}\
					#pv_float-bar > span:active{\
						background-position:-50px 0;\
					}\
				';
				G_container.appendChild(style);
			},
			init:function(){
				this.addStyle();
				var floatBar=document.createElement('span');
				this.floatBar=floatBar;
				floatBar.id='pv_float-bar';

				var floatBar_viewOri=document.createElement('span');
				this.floatBar_viewOri=floatBar_viewOri;
				floatBar_viewOri.id='pv_float-bar-viewori';
				floatBar_viewOri.title='查看原始图片';

				var floatBar_magnifier=document.createElement('span');
				this.floatBar_magnifier=floatBar_magnifier;
				floatBar_magnifier.id='pv_float-bar-magnifier';
				floatBar_magnifier.title='放大镜';

				var floatBar_viewCur=document.createElement('span');
				this.floatBar_viewCur=floatBar_viewCur;
				floatBar_viewCur.id='pv_float-bar-viewcur';
				floatBar_viewCur.title='当前图片弹出查看';

				floatBar.appendChild(floatBar_viewOri);
				floatBar.appendChild(floatBar_viewCur);
				floatBar.appendChild(floatBar_magnifier);


				var self=this;

				var mEnterHandler=function(){
					clearTimeout(self.hideTimer);
				};

				if(support.mouseenter){
					floatBar.addEventListener('mouseenter',mEnterHandler,false);
				}else{
					addCustomEvent.mouseenter(floatBar,mEnterHandler);
				};


				var mLeaveHandler=function(){
					self.hideDelay();
				};

				if(support.mouseleave){
					floatBar.addEventListener('mouseleave',mLeaveHandler,false);
				}else{
					addCustomEvent.mouseleave(floatBar,mLeaveHandler);
				};


				floatBar_viewOri.addEventListener('click',function(e){//查看原图
					e.preventDefault();
					if(self.isOpened())return;
					self.load('original',e);//载入图片.
				},false);

				floatBar_magnifier.addEventListener('click',function(e){//放大镜
					e.preventDefault();
					self.load('magnifier',e);//载入图片.
				},false);

				floatBar_viewCur.addEventListener('click',function(e){//弹出当前图片.
					e.preventDefault();
					if(self.isOpened(self.tSrc))return;
					self.load('current',e);//载入图片.
				},false);


				var rstoHandler=function(){
					if(floatBar.style.visibility!='hidden'){
						self.setPosition();
					};
				};

				var resizeTimer;
				window.addEventListener('resize',function(){
					clearTimeout(resizeTimer);
					resizeTimer=setTimeout(rstoHandler,299);
				},false);

/*
				var scrollTimer;
				window.addEventListener('scroll',function(e){
					clearTimeout(scrollTimer);
					scrollTimer=setTimeout(rstoHandler,299);
				},false);
*/
				G_container.appendChild(floatBar);
			},
		};


		//xpath 获取单个元素
		function getElementByXpath(xpath,contextNode,doc){
			doc=doc || document;
			contextNode=contextNode || doc;
			return doc.evaluate(xpath,contextNode,null,9,null).singleNodeValue;
		};

		//xpath 获取多个元素.
		function getAllElementsByXpath(xpath,contextNode,doc){
			doc=doc || document;
			contextNode=contextNode || doc;
			return doc.evaluate(xpath,contextNode,null,7,null);
		};


		//获取位置
		function getTargetPosition(target){
			var target=target;
			var rect=target.getBoundingClientRect();
			var compStyle=getComputedStyle(target,'');
			var pInt=parseInt;
			var t=rect.top + pInt(compStyle.paddingTop) + pInt(compStyle.borderTopWidth);
			var l=rect.left + pInt(compStyle.paddingLeft) + pInt(compStyle.borderLeftWidth);
			var r=rect.right - pInt(compStyle.paddingRight) - pInt(compStyle.borderRightWidth);
			var b=rect.bottom - pInt(compStyle.paddingBottom) - pInt(compStyle.borderBottomWidth);
			return {
				t:t,
				l:l,
				r:r,
				b:b,
				top: t + window.scrollY,
				left: l + window.scrollX,
				right: r + window.scrollX,
				bottom: b + window.scrollY,
			};
		};

		//获取窗口大小.
		function getWindowSize(){
			var de=document.documentElement;
			//windo.innerHeight;window.innerWidth;
			return {
				h:document.compatMode=='BackCompat'? document.body.clientHeight : de.clientHeight,
				w:de.clientWidth,
			};
		};

		//bind fn
		var fnBind=(function(){
			var slice = Array.prototype.slice;
			return {
				bind: function( fun, thisp ) {
					var args = slice.call(arguments, 2);
					return function() {
						return fun.apply(thisp, args.concat(slice.call(arguments)));
					}
				},
				bindAsEventListener: function( fun, thisp ) {
					var args = slice.call(arguments, 2);
					return function(event) {
						return fun.apply(thisp, [event].concat(args));
					}
				}
			};
		})();

	function xToString(x){//任何转字符串.
		function toStr(x){
			//alert(typeof x);
			switch(typeof x){
				case 'undefined':{
					return Str(x);
				}break;
				case 'boolean':{
					return Str(x);
				}break;
				case 'number':{
					return Str(x);
				}break;
				case 'string':{
					return ('"'+
						(x.replace(/(?:\r\n|\n|\r|\t|\\|")/g,function(a){
							var ret; 
							switch(a){//转成字面量
								case '\r\n':{
									ret='\\r\\n'
								}break;
								case '\n':{
									ret='\\n';
								}break;
								case '\r':{
									ret='\\r'
								}break;
								case '\t':{
									ret='\\t'
								}break;
								case '\\':{
									ret='\\\\'
								}break;
								case '"':{
									ret='\\"'
								}break;
								default:{
								}break; 
							};
							return ret;
						}))+'"');
				}break;
				case 'function':{
					/*
					var fnName=x.name;
					if(fnName && fnName!='anonymous'){
						return x.name;
					}else{
						var fnStr=Str(x);
						return fnStr.indexOf('native code')==-1? fnStr : 'function(){}';
					};
					*/
					var fnStr=Str(x);
					return fnStr.indexOf('native code')==-1? fnStr : 'function(){}';
				}break;
				case 'object':{//注,object的除了单纯{},其他的对象的属性会造成丢失..
					if(x===null){
						return Str(x);
					};
					//alert(x.constructor);
					switch(x.constructor){
						case Object:{
							var i;
							var tempArray=[];
							for(i in x){
								//alert(i);
								if(x.hasOwnProperty(i)){//去掉原型链上的属性.
									tempArray.push(toStr(i)+':'+toStr(x[i]));
								};
							};
							return ('{' + tempArray.join(',') + '}');
						}break;
						case Array:{
							var i;
							var tempArray=[];
							for(i in x){
								//alert(i);
								if(x.hasOwnProperty(i)){//去掉原型链上的属性.
									tempArray.push(toStr(x[i]));
								};
							};
							return ('[' + tempArray.join(',') + ']');
						}break;
						case String:{
							return toStr(Str(x));
						}break;
						case RegExp:{
							return Str(x);
						}break;
						case Number:{
							return Str(x);
						}break;
						case Boolean:{
							return Str(x);
						}break;
						default:{
							//alert(x.constructor);//漏了什么类型么?
						}break;
					};
				}break;
				default:break;
			};
		};
		var Str=String;
		return toStr(x);
	};

		var matchedRule;
		var URL=location.href;

		var floatBar;

		function getDisIS(target){//获取页面上显示的图片的宽 高.
			var iCS=getComputedStyle(target,'');
			var pInt=parseInt;
			return {
				h:pInt(iCS.height),
				w:pInt(iCS.width),
			};
		};

		function getIAS(img){//获取显示图片的实际尺寸.
			var ret={};
			if(support.naturalWHS){
				ret.h=img.naturalHeight;
				ret.w=img.naturalWidth;
			}else{
				var cloneImg=new Image();
				cloneImg.src=img.src;
				ret.h=cloneImg.height;
				ret.w=cloneImg.width;
			};
			return ret;
		};

		function moverhandler(e){
			var target=e.target;
			if(target.nodeName!='IMG')return;
			if(target.className=='pv_pic'){//已经打开的图片.
				return;
			};
			var imgPA=getElementByXpath('./ancestor::a[1]',target);//img的第一个父A元素,也就是连接,其实第一个只是针对opera来说的,因为只有在opera上才能有两个以上的a元素,其他浏览器会被当做错误被纠正.-_-!!~

			if(matchedRule===undefined){//找到符合站点的高级规则,并缓存.
				matchedRule=false;
				for(var i=0,ii=siteInfo.length,siteInfo_i;i<ii;i++){
					siteInfo_i=siteInfo[i];
					if(siteInfo_i.enabled && siteInfo_i.url && siteInfo_i.url.test(URL)){
						matchedRule=siteInfo_i;
						C.log('匹配的站点规则:',matchedRule);
						break;
					};
				};
			};

			var src;
			var noZoom;

			if(matchedRule){//通过高级规则获取.
				try{
					src=matchedRule.getImage.call(target,target,imgPA);
				}catch(e){
				};
			};
			if(!src){//遍历统配规则.
				for(var i=0,ii=tprules.length;i<ii;i++){
					try{
						src=tprules[i].call(target,target,imgPA);
					if(src){
						C.log('匹配的统配规则:',tprules[i]);
						break;
					};
					}catch(e){
					};
				};
			};
			if(!src){//链接可能是一张图片...
				if(imgPA){
					var iPASrc=imgPA.href;
					if(/\.(?:jpg|jpeg|png|gif|bmp)$/i.test(iPASrc)){
						src=iPASrc;
					};
				};
			};
			if(!src){//本图片是否被缩放.
				var imgAS=getIAS(target);//实际尺寸
				C.log('图片实际尺寸:',imgAS);
				var imgCS=getDisIS(target);
				C.log('显示尺寸:',imgCS);
				if(!(imgAS.w==imgCS.w && imgAS.h==imgCS.h)){//如果不是两者完全相等,那么被缩放了.
					if(imgAS.h > prefs.zoomShowMinSizeLimit.h || imgAS.w > prefs.zoomShowMinSizeLimit.w){//最小限定判断.
						src=target.src;
					};
				}else{
					if(prefs.floatBarForceShow.enabled && (imgCS.w>=prefs.floatBarForceShow.size.w && imgCS.h>=prefs.floatBarForceShow.size.h)){
						noZoom=true;
						src=target.src;
					};
				};
			};
			if(src){//如果存在src那么现实浮动栏.
				C.log('发现的图片地址:',src);
				if(!floatBar){
					floatBar=new FloatBarObj();
				};
				floatBar.over(target,e,src,noZoom);
			};
		};


		var openInTopWindow;
		var topWindowExist;
		if(window.postMessage){
			if(window==window.parent){//顶层窗口.
				window.addEventListener('message',function(e){
					var data=e.data;
					if(data.indexOf('from_pv_frame_window:')==-1)return;
					e.source.postMessage('from_pv_top_window:'+'get','*');
					data=data.slice(data.indexOf(':')+1);
					data=eval('('+ data +')');
					if(FloatBarObj.prototype.isOpened(data.src))return;
					var img=new Image();
					img.src=data.src;
					var run;
					function load(){
						if(run)return;
						run=true;
						new PicObj(data.src,img,data.size);
					};
					imgReady(img,load,data.waitImgLoad?  null : load);
				},false);
			};

			if(prefs.iframePicOpenInTopWindow && window!=window.parent && window.parent){//chrome中脚本运行在iframe里面时,window.top,window.parent返回undefined
				openInTopWindow=true;
				var messageHandler=function(e){
					var data=e.data;
					if(data.indexOf('from_pv_top_window:')==-1)return;
					window.removeEventListener('message',messageHandler,false);
					topWindowExist=true;
				};
				window.addEventListener('message',messageHandler,false);
			};
		};

		//监听 mouseover
		document.addEventListener('mouseover',moverhandler,true);
	};

	if(envir.opera){
		document.addEventListener('DOMContentLoaded',init,false);
	}else{
		init();
	};


})(this,window,window.document);